PHYSIOLOGY OF REPRODUCTION IN DOMESTIC FOWL. 



75 



NUMBER OF YOLKS 



FIG. 4. Showing the mean weight in grams of the egg and each egg part for 

 single-, double-, and triple-yolked eggs of 65 K. Solid line = egg weight. Dash 

 line = albumen weight. Dot line = yolk weight. Dash and dot line = shell 

 weight. 



in the different sorts of eggs, or from a comparison of the per- 

 centages. A comparison of the percentages shows that albumen 

 forms 63.58 per cent, of the normal eggs of this bird, but only 



